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Carbon steel SAE 1045

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SAE 1045
Chemical composition: C=0.45%, Mn=0.75%, P=0.04% max, S=0.05% max
Property Value in metric unit Value in US unit
Density 7.872 *10³ kg/m³ 491.4 lb/ft³
Modulus of elasticity 201 GPa 29100 ksi
Thermal expansion (20 ºC) 11.7*10-6 ºCˉ¹ 6.5*10-6 in/(in* ºF)
Specific heat capacity 486 J/(kg*K) 0.116 BTU/(lb*ºF)
Thermal conductivity 50.9 W/(m*K) 353 BTU*in/(hr*ft²*ºF)
Electric resistivity 1.62*10-7 Ohm*m 1.62*10-5 Ohm*cm
Tensile strength (hot rolled) 565 MPa 81900 psi
Yield strength (hot rolled) 310 MPa 45000 psi
Elongation (hot rolled) 16 % 16 %
Hardness (hot rolled) 84 RB 84 RB
Tensile strength (cold drawn) 625 MPa 90600 psi
Yield strength (cold drawn) 530 MPa 76900 psi
Elongation (cold drawn) 12 % 12 %
Hardness (cold drawn) 88 RB 88 RB

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